Problem upgrading from 1.0.2

[moze]

Hi everyone, so the other day i decided to take the plunge and finally upgrade from 1.0.2 to 1.1.1. i spent hours reading up on how to do it to make sure i dont mess up, and i somehow did!! i revirginized my iphone with the virginizer and then i put it in recovery mode. downloaded the 1.1.1 software off the net from this forum and went to itunes presses shift + restore to select my update, chose it, it installed but at the very end i get ERROR 1. so then i go back to my phone and it wouldnt even turn back on, nothing, i thought i had a bricked phone, i then used the apptapp to kick it out of recovery but that didnt work it couldnt detect my phone and it only lite up my screen bright white!!! anyways i finally figured out that by restore it,holding down sleep and home screen for a while, it brought my phone back to life, downloaded anysim and back in service. Im just woundering what i did wrong, cause i want to upgrade but now im terrified to brick my phone for real!!!! can anyone help please??????

thanks and happy holidays to all!!!